Improved apparatus foe coating metal plates with tin and otheb metals



H. W. BUTTERWORTH. APPARATUS EOE COATING METAL PLATES WITH TIN AND OTHERMETALS.

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H. 'W, BUTTERWORTH, 0F PHILADELPHIA, PENNSYLVANIA,

Letters Patent No. 68,351, dated September 3, 1867.

IMPROVED APPARATUS FOR COATING METAL PLATES WITH TIN AND OTHER METALS.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, H. W. BUTTERWOR'IH, of Philadelphia, Pennsylvania,-have invented certain Apparatus for Coating Metal Plates with Metal; andI do hereby declare the following to be a full, clear, and exactdescription of the some.

My invention consists of certain apparatus, fully described hereafter,by which'a smooth coating of metal of uniform thickness may be quicklyimparted to metal plates.

In order to enable others skilled in the art to make and use myinvention, I will now proceed to describe its construction andoperation, reference .being had to the accompanying drawing, which formsa part of this specification, and in which Figure 1 is a verticalsection of my apparatus for coating metal plates with metal, and Figure2 a plan' view. I I

A is a furnace, containing asuitable fireplace, and supporting the panB, which, in the present instance, consists of a dish made in the 'arcof a circle-and resting on the walls of the furnace, within which thegreater portion of the-pan is contained, as seen in fig. 1. On thebottom of the pan is a projection or apro -b the upper-surface of whichis curved, and at one end of. this a'pron are two rollers, a and a, andat the opposite end two similar rollers, b and b, thejournals of theserollers turning in the opposite ends of the pan, and the rollers beinggearedtogether. A pinion on the roller a gears into-a pinion, d, on aspindle, e, which passes through andtu rns in one end of the pan; apinion on the roller 6 gearing into a pinion, d, on a similar spindle,e, and the two pinions being so geared together, by belts or otherwise,that the several rollers may revolve in/ the directions indicated bytheir respective arrows.

- In coating metal plates with metals, suchas sheetiron plateswith tin,it has been the practice to dip the former, properly prepared, intoamolten mass of the latter, an operation which frequently results in anunequal distribution of the tin, parts of the plate having consequentlya waved appearance.

In using my invention a. body of tin is maintained in a molten state inthe pan, by the'firc in the furnace A, and the properly preparedsheetiron x is passed over and in contact with one edge of the pan, and downthe guidc-plate 3/ towards the rollers 12 and b, by which the plate isdrawn forward, pushed over the curved surface of the apron b to therollers 11 and a, by which the plate. is withdrawn from the molten tinpreparatory to its removah these latter rollers imparting an even coatof uniform thickness to the plate. Between the opposite ends of the panB, I place a detachable vessel or other object, 71., which should be ofsuch form and dimensions as to cover as much as possible of the moltentin without interfering with the rollers, thereby preventing undueoxidation of the molten metal. Although I prefer the use of two pairs ofrollers, one for drawing the plate 1 into the molten metal, and theother pair for withdrawing it from the same, the latter pair only may beused, the plate in which case is pushed through the molten metal to therollers d and a, which complete the operation. I claim as my invention,and desire to secure by Letters Patent- 1. Rollers aand a combined witha pan containing molten metal, substantially-as and for the purposeherein set forth. p I

7 2 The pan B in combination with the rollers a anda and b and b, gearedtogether so as to operate simulk taneously, as described, for thepurpose specified.

i 3. The arrangement of the curved apron 6", in the bottom of the pan B,in respect to the rollers a and a and '6 and b". v I

In testimony whereof I have signed my-name to this specification 1n thepresence of two subscribing witnesses,

H. w. BUTTERWORTH.

Witnesses:

Jorm WHITE, W. J. R. Dams-r.

